Ejecting device for injection molding of power battery structural component
By combining the clamping and driving components, the ejector pins can be quickly replaced without loosening the bolts, solving the problem of low ejector pin replacement efficiency in the existing technology and improving injection molding production efficiency and the stability of the ejection process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-07
AI Technical Summary
The limited operating space during the replacement of existing push rods makes tightening bolts difficult, which consumes time and effort and reduces the efficiency of push rod replacement.
By employing the cooperation of clamping and driving components, external force is applied or removed through the rotating shaft to loosen or clamp the push rod with the elastic wedge. Combined with the locking component, the shaft is prevented from rotating in the opposite direction due to equipment vibration, thus enabling quick replacement of the push rod.
It significantly shortens the ejector pin replacement time, improves injection molding production efficiency, ensures the stability of the ejection process, and avoids abnormalities caused by ejector pin loosening.
Smart Images
Figure CN224087816U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to injection moulding technical field, and specifically relates to power battery structural part injection moulding is with the device of top piece. BACKGROUND
[0002] The device is mainly used for ejecting the formed power battery structural part from the mold during the injection molding process, so that the structural part is separated from the surface of the mold, avoiding the difficulty in taking out the structural part due to adsorption or jamming, and ensuring the smooth demolding process and improving the production efficiency.
[0003] In the prior art, some ejector rods need to be unscrewed one by one during replacement, which is difficult to operate due to limited space, and thus requires a lot of time and effort of the workers, resulting in low efficiency of the replacement of the ejector rod. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a device for ejecting a power battery structural part during injection molding, which aims to solve the problems in the background art.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] The device for ejecting a power battery structural part during injection molding comprises an injection molding mechanism, a mold, a material ejection hole formed in the center of the surface of the mold, and an ejector rod arranged inside the material ejection hole.
[0007] The dismounting mechanism comprises a clamping assembly for quickly connecting the ejector rod, which is arranged inside the material ejection hole.
[0008] The driving assembly is arranged outside the clamping assembly and is used to control the clamping assembly to automatically clamp the ejector rod when the external force is removed.
[0009] As a preferred scheme of the utility model, the clamping assembly comprises an internal thread sleeve arranged inside the material ejection hole and used to support the ejector rod, an external thread sleeve threadedly connected to the inner surface of the internal thread sleeve, a plurality of elastic inclined blocks arranged in a circumferential array on the inner wall of the internal thread sleeve and used to clamp the ejector rod, and an inclined groove formed in the inner wall of the external thread sleeve and used to press the elastic inclined blocks to make them tighten.
[0010] As a preferred scheme of the utility model, the driving assembly includes a fixing disc fixedly sleeved on the outer surface of the inner threaded sleeve, a rotating shaft fixedly installed on the outer surface of the fixing disc through a bearing, a long gear fixedly sleeved on the outer surface of the rotating shaft, a short gear fixedly sleeved on the outer surface of the outer threaded sleeve and matched with the long gear, and a torsion spring sleeved on the outer surface of the rotating shaft and matched with the fixing disc.
[0011] As a preferred scheme of the utility model, the end of the outer threaded sleeve is provided with an oblique opening matched with the inclined chute; it adopts stainless steel material, and the inner wall is fixedly connected with an antiskid rubber pad.
[0012] As a preferred scheme of the utility model, the long gear and the short gear are engaged, the outer end surface of the torsion spring is fixedly connected with the outer surface of the fixing disc, and the other end thereof is fixedly connected with the outer surface of the rotating shaft.
[0013] The short gear can move along the surface of the long gear in the rotating process.
[0014] As a preferred scheme of the utility model, the dismounting mechanism further includes a locking assembly for limiting the fixing disc, preventing reverse rotation due to violent vibration in the use process, which is arranged below the long gear.
[0015] As a preferred scheme of the utility model, the locking assembly includes a fixing block fixedly connected with the outer surface of the fixing disc, a spring fixedly installed on the outer surface of the fixing block, a pawl fixedly connected with the other end of the spring, and a ratchet wheel fixedly sleeved on the outer surface of the rotating shaft and matched with the pawl.
[0016] As a preferred scheme of the utility model, the pawl is fixedly installed on the outer surface of the fixing disc through a bearing, and the pawl and the ratchet wheel are engaged.
[0017] As a preferred scheme of the utility model, the injection mechanism further includes a guide rod in sliding contact with the inner surface of the mold, and a piston rod fixedly connected with the inner threaded sleeve and used for driving the ejector rod.
[0018] Compared with the prior art, the utility model has the beneficial effects that through the cooperation of the clamping assembly and the driving assembly, the elastic inclined block can be loosened or clamped only by exerting or removing external force on the rotating shaft without loosening the bolt, so that the replacement time of the ejector rod is greatly shortened, the injection production efficiency is improved, through the locking assembly, the reverse rotation of the rotating shaft caused by the vibration of the equipment during the injection operation can be prevented, and the effect that the structural part is abnormally ejected due to the loosening of the ejector rod is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and therefore the present application is not limited to the specific embodiments disclosed below.
[0020] Figure 1 It is a schematic diagram of the overall structure of the present application.
[0021] Figure 2 It is a schematic diagram of the overall structure of the present application. Figure 1
[0022] Figure 3 It is a schematic diagram of the internal structure of the internal thread sleeve in the present application.
[0023] Figure 4 It is a schematic diagram of the internal structure of the internal thread sleeve in the present application. Figure 3
[0024] It is a schematic diagram of the internal structure of the internal thread sleeve in the present application. Figure 5
[0025] Figure 6 It is a schematic diagram of the internal structure of the external thread sleeve in the present application.
[0026] In the figure: 100, injection mechanism; 101, mold; 102, ejecting hole; 103, ejecting rod; 104, guide rod; 105, piston rod; 200, disassembling mechanism; 201, clamping assembly; 201a, internal thread sleeve; 201b, external thread sleeve; 201c, elastic inclined block; 201d, inclined groove; 202, driving assembly; 202a, fixed disc; 202b, rotating shaft; 202c, long gear; 202d, short gear; 202e, torsional spring; 203, locking assembly; 203a, fixed block; 203b, spring; 203c, pawl; 203d, ratchet wheel. DETAILED DESCRIPTION
[0027] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.
[0028] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited to the specific embodiments disclosed below.
[0029] Secondly, the "one embodiment" or "embodiment" referred to herein is intended to mean a specific feature, structure, characteristic, or combination of features and characteristics described herein that is included in at least one implementation of the present application. The various appearances of "in one embodiment" or "in an embodiment" in the specification are not necessarily all referring to the same embodiment.
[0030] Embodiment
[0031] Reference Figures 1-6 For the embodiment of the present application, the embodiment provides a top piece device for power battery structural part injection molding, comprising,
[0032] The injection molding mechanism 100 comprises a mold 101, a material ejection hole 102 arranged at the center of the surface of the mold 101, and a ejector rod 103 arranged inside the material ejection hole 102.
[0033] The dismounting mechanism 200 comprises a clamping assembly 201 for quickly connecting the ejector rod 103, which is arranged inside the material ejection hole 102.
[0034] It should be noted that the mold 101 is used to shape the power battery structural part, and in the injection molding process, liquid plastic is injected into the cavity of the mold 101, and after cooling and solidification, the required structural part is formed. The material ejection hole 102 is used to provide a movement channel for the ejector rod 103, so that the ejector rod 103 can eject the formed structural part from the inside of the mold 101. The piston rod 105 is used to provide the ejection power for the ejector rod 103, and to push the ejector rod 103 to eject the formed structural part from the mold 101.
[0035] And the driving assembly 202 for controlling the clamping assembly 201 to automatically clamp the ejector rod 103 when the external force is removed, which is arranged outside the clamping assembly 201.
[0036] Specifically, the clamping assembly 201 comprises an inner threaded sleeve 201a arranged inside the material ejection hole 102 and used to carry the ejector rod 103, an outer threaded sleeve 201b threadedly connected to the inner surface of the inner threaded sleeve 201a, a plurality of elastic inclined blocks 201c arranged in a circumferential array on the inner wall of the inner threaded sleeve 201a and used to clamp the ejector rod 103, and an inclined groove 201d arranged on the inner wall of the outer threaded sleeve 201b and used to extrude the elastic inclined blocks 201c to make them tighten.
[0037] It should be noted that the internal thread sleeve 201a provides a mounting base for the ejector pin 103, and when the external thread sleeve 201b rotates, it will move axially under the action of the thread of the internal thread sleeve 201a, thereby driving the chute 201d to extrude the elastic inclined block 201c, changing the state of the elastic inclined block 201c. The elastic inclined block 201c shrinks to the center, clamping the ejector pin 103; when the external thread sleeve 201b rotates in the opposite direction, the pressure of the chute on the elastic inclined block 201c is gradually removed, and the elastic inclined block 201c can restore its original state by its own elastic force, releasing the ejector pin 103.
[0038] Further, the driving assembly 202 includes a fixed disc 202a fixedly sleeved on the outer surface of the internal thread sleeve 201a, a rotating shaft 202b fixedly installed on the outer surface of the fixed disc 202a through a bearing, a long gear 202c fixedly sleeved on the outer surface of the rotating shaft 202b, a short gear 202d fixedly sleeved on the outer surface of the external thread sleeve 201b and cooperating with the long gear 202c, and a torsional spring 202e sleeved on the outer surface of the rotating shaft 202b and cooperating with the fixed disc 202a.
[0039] More should be noted that the fixed disc 202a is used to provide a mounting base for the rotating shaft 202b and other components, and when the rotating shaft 202b is rotated by an external force, it can drive the long gear 202c to rotate, and then drive the short gear 202d and the external thread sleeve 201b to rotate synchronously through the long gear 202c, so that the external thread sleeve 201b gradually drives the chute 201d to gradually move away from the elastic inclined block 201c, thereby releasing the ejector pin 103. The torsional spring 202e can be twisted and deformed under the action of the external force of the rotating shaft 202b, and store elastic potential energy; when the external force is removed, the torsional spring 202e releases the elastic potential energy, causing the rotating shaft 202b to rotate in the opposite direction, thereby driving the external thread sleeve 201b to rotate in the opposite direction, and further driving the elastic inclined block 201c to automatically clamp the ejector pin 103.
[0040] Preferably, the end of the external thread sleeve 201b is provided with a beveled opening cooperating with the chute 201d; it is made of stainless steel, and the inner wall is fixedly connected with an anti-skid rubber pad.
[0041] It should be noted that the long gear 202c and the short gear 202d are engaged, the outer end surface of the torsional spring 202e is fixedly connected with the outer surface of the fixed disc 202a, and the other end is fixedly connected with the outer surface of the rotating shaft 202b.
[0042] The short gear 202d can move along the surface of the long gear 202c during rotation.
[0043] Further, the dismounting mechanism 200 further includes a locking assembly 203 for limiting the fixed disc 202a to prevent it from rotating in the opposite direction due to violent vibration during use, which is arranged below the long gear 202c.
[0044] Specifically, the locking assembly 203 comprises a fixed block 203a fixedly connected to the outer surface of the fixed disc 202a, a spring 203b fixedly installed on the outer surface of the fixed block 203a, a pawl 203c fixedly connected to the other end of the spring 203b, and a ratchet wheel 203d fixedly sleeved on the outer surface of the rotating shaft 202b and matched with the pawl 203c.
[0045] It should be explained that the fixed block 203a is used to provide an installation position for the spring 203b, so that the spring 203b can work normally, and the spring 203b is used to provide an elastic force for the pawl 203c, so that the pawl 203c always has a tendency to engage with the ratchet wheel 203d. When the pawl 203c is subjected to an external force, the spring 203b will be elastically deformed to store elastic potential energy. After the external force disappears, the pawl 203c is returned to the position of engaging with the ratchet wheel 203d through the release of the elastic potential energy of the spring 203b, so as to limit the reverse rotation of the rotating shaft 202b, prevent the loosening of the external thread sleeve 201b due to violent vibration during use, and thus ensure the stable clamping state of the ejector rod 103.
[0046] Preferably, the pawl 203c is fixedly installed on the outer surface of the fixed disc 202a through a bearing, and the pawl 203c and the ratchet wheel 203d are engaged.
[0047] Further, the injection mechanism 100 further comprises a guide rod 104 in sliding contact with the inner surface of the mold 101, and a piston rod fixedly connected with the internal thread sleeve 201a and used to drive the ejector rod 103.
[0048] In use, liquid plastic is injected into the mold cavity of the mold 101, so that it is cooled and solidified to form a power battery structural part; then the formed structural part is ejected from the mold 101 by the ejector rod 103 driven by the piston rod 105;
[0049] When the ejector rod 103 is disassembled: the elastic force of the spring 203b is overcome, the pawl 203c is moved to a position separated from the ratchet wheel 203d, the locking state of the rotating shaft 202b is released, an external force is applied to the rotating shaft 202b to drive the long gear 202c to rotate, the long gear 202c drives the short gear 202d and the external thread sleeve 201b to rotate synchronously, the external thread sleeve 201b moves axially under the thread action of the internal thread sleeve 201a, and then the inner wall inclined groove 201d gradually moves away from the elastic inclined block 201c, so that the elastic inclined block 201c is loosened by restoring its original state through its elasticity, and in this process, the torsional spring 202e is twisted and deformed to store elastic potential energy.
[0050] When installing the ejector pin 103, the ejector pin 103 is placed in the inner threaded sleeve 201a, the external force applied on the rotating shaft 202b and the pawl 203c is removed, the elastic potential energy released by the torsion spring 202e reversely rotates the rotating shaft 202b, drives the long gear 202c, the short gear 202d and the outer threaded sleeve 201b to reversely rotate, further drives the inclined groove 201d to extrude the elastic inclined block 201c to make it tighten, automatically clamps the ejector pin 103; finally, the spring 203b makes the pawl 203c return to the position engaged with the ratchet wheel 203d, thereby limiting the reverse rotation of the rotating shaft 202b, preventing the outer threaded sleeve 201b from loosening due to violent vibration, and ensuring the stability of the clamping state of the ejector pin 103.
[0051] In summary, through the cooperation of the clamping assembly 201 and the driving assembly 202, the elastic inclined block 201c can be loosened or clamped on the ejector pin 103 only by applying or removing the external force on the rotating shaft 202b without loosening the bolt, thereby greatly shortening the replacement time of the ejector pin 103, improving the injection molding production efficiency, and through the locking assembly 203, the reverse rotation of the rotating shaft 202b caused by the vibration of the equipment during the injection molding operation can be prevented, and the effect of abnormal ejection of the structural part caused by the loosening of the ejector pin 103 can be avoided.
[0052] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed or re-sequenced without departing from the subject matter. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described but extends to the scope of the appended claims.
[0053] Furthermore, in the interest of providing a concise description of illustrative embodiments, not all features of an actual implementation can be described (that is, not all
[0054] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.
[0055] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.
Claims
1. An ejector device for injection molding structural components of a power battery, characterized in that: include, The injection molding mechanism (100) includes a mold (101), an ejector hole (102) opened at the center of the surface of the mold (101), and an ejector rod (103) disposed inside the ejector hole (102); The disassembly and assembly mechanism (200) includes a clamping assembly (201) for quick connection of the top rod (103), which is located inside the top material hole (102); And a drive assembly (202) for controlling the clamping assembly (201) to automatically clamp the top rod (103) when the external force is removed, which is located on the outside of the clamping assembly (201).
2. The ejector device for injection molding of power battery structural components according to claim 1, characterized in that: The clamping assembly (201) includes an internal threaded sleeve (201a) disposed inside the top hole (102) and used to support the top rod (103), an external threaded sleeve (201b) threaded to the inner surface of the internal threaded sleeve (201a), elastic inclined blocks (201c) arranged in a circumferential array on the inner wall of the internal threaded sleeve (201a) and used to clamp the top rod (103), and an inclined groove (201d) opened on the inner wall of the external threaded sleeve (201b) and used to squeeze the elastic inclined blocks (201c) to tighten them.
3. The ejector device for injection molding of power battery structural components according to claim 2, characterized in that: The drive assembly (202) includes a fixed disk (202a) fixedly sleeved on the outer surface of the internal threaded sleeve (201a), a rotating shaft (202b) fixedly mounted on the outer surface of the fixed disk (202a) by a bearing, a long gear (202c) fixedly sleeved on the outer surface of the rotating shaft (202b), a short gear (202d) fixedly sleeved on the outer surface of the external threaded sleeve (201b) and used in conjunction with the long gear (202c), and a torsion spring (202e) sleeved on the outer surface of the rotating shaft (202b) and used in conjunction with the fixed disk (202a).
4. The ejector device for injection molding of power battery structural components according to claim 3, characterized in that: The end of the external threaded sleeve (201b) is provided with a bevel for use with the inclined groove (201d); it is made of stainless steel and has an anti-slip rubber pad fixedly connected to its inner wall.
5. The ejector device for injection molding of power battery structural components according to claim 4, characterized in that: The long gear (202c) and the short gear (202d) mesh, the outer end face of the torsion spring (202e) is fixedly connected to the outer surface of the fixed disk (202a), and its other end is fixedly connected to the outer surface of the rotating shaft (202b); The short gear (202d) can move along the surface of the long gear (202c) during rotation.
6. The ejector device for injection molding of power battery structural components according to claim 5, characterized in that: The disassembly and assembly mechanism (200) further includes a locking component (203) for limiting the fixed plate (202a) to prevent it from rotating in the opposite direction due to severe vibration during use, which is located below the long gear (202c).
7. The ejector device for injection molding of power battery structural components according to claim 6, characterized in that: The locking assembly (203) includes a fixing block (203a) fixedly connected to the outer surface of the fixing plate (202a), a spring (203b) fixedly installed on the outer surface of the fixing block (203a), a pawl (203c) fixedly connected to the other end of the spring (203b), and a ratchet (203d) fixedly sleeved on the outer surface of the rotating shaft (202b) and used in conjunction with the pawl (203c).
8. The ejector device for injection molding of power battery structural components according to claim 7, characterized in that: The pawl (203c) is fixedly mounted on the outer surface of the fixed disk (202a) by a bearing, and the pawl (203c) and the ratchet (203d) are engaged.
9. The ejector device for injection molding of power battery structural components according to claim 8, characterized in that: The injection molding mechanism (100) further includes a guide rod (104) that slides in contact with the inner surface of the mold (101), and a piston rod that is fixedly connected to the internal threaded sleeve (201a) and is used to drive the push rod (103).